What would you do if your best friend was in love with the one you love?

I dont know what you want to convey here,... but from what i get... i think it depends on either persons maturity and willingness to understand the situation... its not about being competitive or being aggressive... its actually about letting him/her chose whom he/she wants to... also while doing that you have to understand that you have to be the person that you are and not to change just to possess some person... if that individual likes you the way you are then the decision is much simpler than what it seems to be